Patents by Inventor Jihui Zhang

Jihui Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240323869
    Abstract: The present application relates to a beamforming method, a beamforming device and a computer-readable storage medium, the beamforming method comprises: the measurement signal is sent one by one for each candidate beam, and the candidate beam is different from each other; obtain the receiving power and phase information of the measurement signals corresponding to each candidate beam received by the receiving end; according to the order of the receiving power from high to low and the power allocation strategy, at least two of the candidate beams are chosen as the target beam; and determine the transmitted beam based on the target beam and the beamforming strategy.
    Type: Application
    Filed: January 23, 2024
    Publication date: September 26, 2024
    Inventors: Xide Mei, Man Wai Kwan, Zizhou Wang, Jihui Zhang, Wei Han, Kong Chau Tsang
  • Patent number: 12002235
    Abstract: An iterative multi-image camera orientation estimation comprising: capturing an image of a scene before the camera; detecting line segments in the scene; computing a maximum likelihood (ML) camera orientation by maximizing a likelihood objective by rotating the camera's X-Y-Z coordinate system such that it is being optimally aligned with the line segments in at least two of the frontal, the lateral, and the vertical orthogonal directions; estimating a maximum a-posteriori (MAP) camera orientation that maximizes an a-posteriori objective such that the MAP camera orientation is an optimal value in between the priori camera orientation and the ML camera orientation, and is closer to the one with smaller uncertainty; iterating the multi-image camera orientation estimation with the priori camera orientation and its corresponding priori camera orientation uncertainty set to the computed MAP camera orientation and its corresponding uncertainty respectively until the uncertainty is lower than a threshold.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: June 4, 2024
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Wang Kit Wilson Thong, Jihui Zhang, Man Wai Kwan, Yiu Man Lam, Cheng Hsiung Liu, Jiaxin Yan, Zhuobin Lin
  • Patent number: 11348277
    Abstract: A method for estimating camera orientation relative to a ground surface. Line segments are detected from an image captured by a camera. A first virtual cube having three orthogonal vanishing points with a random 3D orientation is superimposed on to the image. The line segments of the image are classified grouped into 3D-directional groups. A second virtual cube is superimposed on to the image with an initial 3D orientation. An optimal 3D orientation of the second virtual cube is computed by iteratively changing the 3D orientation of the second virtual cube and measuring perpendicular distances of the three orthogonal vanishing points to the three line segment groups in each iteration starting with the initial 3D orientation, wherein the optimal 3D orientation of the second virtual cube being one that provides shortest perpendicular distances. Co-variances of the orthogonal vanishing points of the second virtual cube at the optimal orientation are computed.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: May 31, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Wang Kit Wilson Thong, Jihui Zhang, Man Wai Kwan, Yiu Man Lam, Cheng Hsiung Liu, Jiaxin Yan, Zhuobin Lin
  • Patent number: 11284405
    Abstract: Described is a method of reducing uplink inter-cell interference in a cellular communications network. The method comprises identifying in a cell any user equipments (UEs) which are susceptible to interference (ISUs) from another UE, particularly another UE in a neighboring cell. The method includes identifying in said cell any UEs causing interference (ICUs) to at least one neighboring cell and, more particularly, causing interference to a UE in a neighboring cell. The identified ISUs and ICUs are combined into a priority list for frequency resource reservation or allocation in said cell. The method may include limiting the identification of ISUs and ICUs to a selected number of UEs within the cell.
    Type: Grant
    Filed: March 26, 2019
    Date of Patent: March 22, 2022
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Zizhou Wang, Qifeng Liao, Jihui Zhang, Man Wai Kwan, Kong Chau Tsang
  • Publication number: 20220051429
    Abstract: A method for estimating camera orientation relative to a ground surface. Line segments are detected from an image captured by a camera. A first virtual cube having three orthogonal vanishing points with a random 3D orientation is superimposed on to the image. The line segments of the image are classified grouped into 3D-directional groups. A second virtual cube is superimposed on to the image with an initial 3D orientation. An optimal 3D orientation of the second virtual cube is computed by iteratively changing the 3D orientation of the second virtual cube and measuring perpendicular distances of the three orthogonal vanishing points to the three line segment groups in each iteration starting with the initial 3D orientation, wherein the optimal 3D orientation of the second virtual cube being one that provides shortest perpendicular distances. Co-variances of the orthogonal vanishing points of the second virtual cube at the optimal orientation are computed.
    Type: Application
    Filed: August 12, 2020
    Publication date: February 17, 2022
    Inventors: Wang Kit Wilson THONG, Jihui ZHANG, Man Wai KWAN, Yiu Man LAM, Cheng Hsiung LIU, Jiaxin YAN, Zhuobin LIN
  • Publication number: 20220051430
    Abstract: An iterative multi-image camera orientation estimation comprising: capturing an image of a scene before the camera; detecting line segments in the scene; computing a maximum likelihood (ML) camera orientation by maximizing a likelihood objective by rotating the camera's X-Y-Z coordinate system such that it is being optimally aligned with the line segments in at least two of the frontal, the lateral, and the vertical orthogonal directions; estimating a maximum a-posteriori (MAP) camera orientation that maximizes an a-posteriori objective such that the MAP camera orientation is an optimal value in between the priori camera orientation and the ML camera orientation, and is closer to the one with smaller uncertainty; iterating the multi-image camera orientation estimation with the priori camera orientation and its corresponding priori camera orientation uncertainty set to the computed MAP camera orientation and its corresponding uncertainty respectively until the uncertainty is lower than a threshold.
    Type: Application
    Filed: March 10, 2021
    Publication date: February 17, 2022
    Inventors: Wang Kit Wilson THONG, Jihui ZHANG, Man Wai KWAN, Yiu Man LAM, Cheng Hsiung LIU, Jiaxin YAN, Zhuobin LIN
  • Publication number: 20210375256
    Abstract: The present technology relates to signal processing device and method, and a program for enabling spatial noise cancelling with a saved space and a small computation amount. The signal processing device includes a control section that, on the basis of a first microphone signal obtained by sound collection at a first microphone array, a speaker drive signal of an output sound for cancelling a sound which is propagated from an outside of a predetermined region to the predetermined region and is collected by the first microphone array, and that outputs the output sound from a speaker array on the basis of the speaker drive signal. The first microphone array includes a plurality of microphones. The speaker array includes at least one high-order speaker. The present technology is applicable to a signal processing device.
    Type: Application
    Filed: October 11, 2019
    Publication date: December 2, 2021
    Inventors: NAOKI MURATA, YUHKI MITSUFUJI, YU MAENO, JIHUI ZHANG
  • Patent number: 11004212
    Abstract: A method and system for tracking a position and orientation of a target object that moves along a two-dimensional plane, a camera to generate video frames of the target object, and a processor configured to correct perspective scaling of a current one of the video frames; estimate a current location and angle of the target object using a motion model or its previous location/angle; cut out a region of interest from the current video frame around the estimated current location; resize the region of interest to shrink its size by a predetermined ratio M (width=width/M, height=height/M) or equivalently reducing the image resolution of the region of interest by the ratio M (resolution=resolution/M); track a new location of the target object by template matching the current region of interest with a previously stored template; and either conclude the tracked target object location and angle are accurate and updating the template if a stopping criterion is reached with indication of successful tracking, or proceed
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: May 11, 2021
    Assignee: HONG KONG APPLIED SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE COMPANY LIMITED
    Inventors: Cheng Hsiung Liu, Wang Kit Wilson Thong, Man Wai Kwan, Zijian Xu, Yiu Man Lam, Jihui Zhang, Jiaxin Yan
  • Publication number: 20200314863
    Abstract: Described is a method of reducing uplink inter-cell interference in a cellular communications network. The method comprises identifying in a cell any user equipments (UEs) which are susceptible to interference (ISUs) from another UE, particularly another UE in a neighboring cell. The method includes identifying in said cell any UEs causing interference (ICUs) to at least one neighboring cell and, more particularly, causing interference to a UE in a neighboring cell. The identified ISUs and ICUs are combined into a priority list for frequency resource reservation or allocation in said cell. The method may include limiting the identification of ISUs and ICUs to a selected number of UEs within the cell.
    Type: Application
    Filed: March 26, 2019
    Publication date: October 1, 2020
    Inventors: Zizhou Wang, Qifeng Liao, Jihui Zhang, Man Wai Kwan, Kong Chau Tsang
  • Publication number: 20200241848
    Abstract: A new computer programming language, that is DT language, is disclosed. The language comprises the unique features in this programming language and their realization methods. Nowadays, data process is becoming more and more widely used in various industries and all walks of life. Using computer programming languages that created decades ago to develop software or to process data in various industries now is too cumbersome, too inefficient, and too difficult to do post-maintenance after development; there are too many bugs, the development time cycle is too long, and the implementation rate is too low. This invention initiated “Datalization Programming, Structuration Programming, Configuration Programming”, and realized rapid and efficient software production and data processing through newly invented data types and the work done for these data types by this language. Developers or designers can use the Client-end programming tool provided by this language to configure and code through newly added data types.
    Type: Application
    Filed: January 20, 2019
    Publication date: July 30, 2020
    Applicant: BAIYETE (SHANGHAI) SOFTWARE TECHNOLOGY CO., LTD
    Inventor: Jihui Zhang
  • Publication number: 20190098588
    Abstract: Methods and systems which provide for synchronization target selection by configuring a network device to reselect a synchronization signal transmission timeslot for synchronization target searching by the network device are described. Synchronization signal timeslot reselection may provide for downgrading a current stratum index to an artificial stratum index that does not accurately indicate a number of hops between the network device and a global synchronization source to allow for selection of available synchronization targets with stratum indices that are higher than or equal to the network device's stratum index without causing a synchronization loop. A synchronization signal pattern cycle structure having synchronization signal timeslots organized into multiple subcycles for accommodating synchronization signal timeslot reselection is utilized according to embodiments.
    Type: Application
    Filed: September 28, 2017
    Publication date: March 28, 2019
    Inventors: Wilson Wang Kit Thong, Victor Man Wai Kwan, Elaine Jihui Zhang, Jie Chuai, Ching Hong Leung, Yan Lam Lee, Eric Kong Chau Tsang
  • Patent number: 10244495
    Abstract: Methods and systems which provide for synchronization target selection by configuring a network device to reselect a synchronization signal transmission timeslot for synchronization target searching by the network device are described. Synchronization signal timeslot reselection may provide for downgrading a current stratum index to an artificial stratum index that does not accurately indicate a number of hops between the network device and a global synchronization source to allow for selection of available synchronization targets with stratum indices that are higher than or equal to the network device's stratum index without causing a synchronization loop. A synchronization signal pattern cycle structure having synchronization signal timeslots organized into multiple subcycles for accommodating synchronization signal timeslot reselection is utilized according to embodiments.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: March 26, 2019
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Wilson Wang Kit Thong, Victor Man Wai Kwan, Elaine Jihui Zhang, Jie Chuai, Ching Hong Leung, Yan Lam Lee, Eric Kong Chau Tsang
  • Patent number: 10212677
    Abstract: The present disclosure relates to methods and systems for selection of synchronization targets. Embodiments of the present disclosure provide for selecting a synchronization target for a network device, within operational network constraints, when the network device loses its current synchronization target. When a network device loses its current synchronization target, the stratum index of the network device is downgraded to an artificial stratum index before a selection of a new synchronization target is made. The artificial stratum index is broadcast to children network devices. Downgrading the stratum index to an artificial stratum index allows for selection of available synchronization target network devices with stratum indices higher than or equal to the network device's stratum index. After selection of a new synchronization target, the network device's stratum index is updated, and the new updated stratum index of the network device is broadcast to the children network devices of the network device.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: February 19, 2019
    Assignee: Hong Kong Applied Science and Technology Research Institute Co., Ltd.
    Inventors: Wilson Wang Kit Thong, Elaine Jihui Zhang, Victor Man Wai Kwan, Vincent Zizhou Wang, Eric Kong Chau Tsang, Wei Han
  • Publication number: 20190053173
    Abstract: The present disclosure relates to methods and systems for selection of synchronization targets. Embodiments of the present disclosure provide for selecting a synchronization target for a network device, within operational network constraints, when the network device loses its current synchronization target. When a network device loses its current synchronization target, the stratum index of the network device is downgraded to an artificial stratum index before a selection of a new synchronization target is made. The artificial stratum index is broadcast to children network devices. Downgrading the stratum index to an artificial stratum index allows for selection of available synchronization target network devices with stratum indices higher than or equal to the network device's stratum index. After selection of a new synchronization target, the network device's stratum index is updated, and the new updated stratum index of the network device is broadcast to the children network devices of the network device.
    Type: Application
    Filed: August 9, 2017
    Publication date: February 14, 2019
    Inventors: Wilson Wang Kit Thong, Elaine Jihui Zhang, Victor Man Wai Kwan, Vincent Zizhou Wang, Eric Kong Chau Tsang, Wei Han
  • Patent number: 9722758
    Abstract: This invention provides a method for a first communication device, such as a base station, to estimate a channel-quality profile of a channel when a second communication device, e.g., a user equipment, returns only channel-quality indicators (CQIs) of selected subbands and a wideband CQI. The profile is obtained by including, for any two neighboring frequencies of the selected subbands, an estimated CQI of a middle frequency between the two neighboring frequencies. After translating the CQIs of the two neighboring frequencies into corresponding linear CQI values, a linear estimated-CQI value for the middle frequency is determined by subtracting an offset from an average of said corresponding linear CQI values. The offset is determined according to a frequency separation between the two neighboring frequencies. Preferably, the offset is linearly proportional to the frequency separation. Interpolation, preferably linear interpolation, is used to obtain linear CQI values of other frequencies.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: August 1, 2017
    Assignee: Hong Kong Applied Science and Technology Research Institute Company Limited
    Inventors: Jiewei Ding, Man Wai Kwan, Jihui Zhang, Kong Chau Tsang
  • Publication number: 20160344488
    Abstract: This invention provides a method for a first communication device, such as a base station, to estimate a channel-quality profile of a channel when a second communication device, e.g., a user equipment, returns only channel-quality indicators (CQIs) of selected subbands and a wideband CQI. The profile is obtained by including, for any two neighboring frequencies of the selected subbands, an estimated CQI of a middle frequency between the two neighboring frequencies. After translating the CQIs of the two neighboring frequencies into corresponding linear CQI values, a linear estimated-CQI value for the middle frequency is determined by subtracting an offset from an average of said corresponding linear CQI values. The offset is determined according to a frequency separation between the two neighboring frequencies. Preferably, the offset is linearly proportional to the frequency separation. Interpolation, preferably linear interpolation, is used to obtain linear CQI values of other frequencies.
    Type: Application
    Filed: May 20, 2015
    Publication date: November 24, 2016
    Inventors: Jiewei DING, Man Wai KWAN, Jihui ZHANG, Kong Chau TSANG
  • Patent number: 8637453
    Abstract: The present invention pertains generally to the field of therapeutic compounds, and more specifically to certain pyruvamide compounds of the following formula (for convenience, collectively referred to herein as “PVA compounds”), which, inter alia, inhibit a dust mite Group 1 peptidase allergen (e.g., Der p 1, Der f 1, Eur m 1). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit a dust mite Group 1 peptidase allergen, and in the treatment of diseases and disorders that are mediated by a dust mite Group 1 peptidase allergen; that are ameliorated by the inhibition of a dust mite Group 1 peptidase allergen; asthma; rhinitis; allergic conjunctivitis; atopic dermatitis; an allergic condition which is triggered by dust mites; an allergic condition which is triggered by a dust mite Group 1 peptidase allergen; and canine atopy.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: January 28, 2014
    Assignees: St George's Hospital Medical School, The University of Manchester
    Inventors: Clive Robinson, Jihui Zhang, David Ronald Garrod, Trevor Robert Perrior, Gary Karl Newton, Kerry Jenkins, Rebekah Elisabeth Key, Meriel Ruth Major, Mark Richard Stewart
  • Patent number: 8541363
    Abstract: The present invention pertains generally to the field of therapeutic compounds and more specifically to certain pyruvamide compounds of the formula (X) (for convenience, collectively referred to herein as “PVA compounds”), which, inter alia, inhibit a dust mite Group 1 peptidase allergen (e.g., Der p 1, Der f 1, Eur m 1). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit a dust mite Group 1 peptidase allergen, and in the treatment of diseases and disorders that are mediated by a dust mite Group 1 peptidase allergen; that are ameliorated by the inhibition of a dust mite Group 1 peptidase allergen; asthma; rhinitis; allergic conjunctivitis; atopic dermatitis; an allergic condition which is triggered by dust mites; an allergic condition which is triggered by a dust mite Group 1 peptidase allergen; and canine atopy.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: September 24, 2013
    Assignees: St George's Hosptial Medical School, The University of Manchester
    Inventors: Clive Robinson, Jihui Zhang, David Ronald Garrod, Trevor Robert Perrior, Gary Karl Newton, Kerry Jenkins, Rebekah Elisabeth Beevers, Meriel Ruth Major, Mark Richard Stewart
  • Publication number: 20130217617
    Abstract: The present invention pertains generally to the field of therapeutic compounds, and more specifically to certain pyruvamide compounds of the following formula (for convenience, collectively referred to herein as “PVA compounds”), which, inter alia, inhibit a dust mite Group 1 peptidase allergen (e.g., Der p 1, Der f 1, Eur m 1). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit a dust mite Group 1 peptidase allergen, and in the treatment of diseases and disorders that are mediated by a dust mite Group 1 peptidase allergen; that are ameliorated by the inhibition of a dust mite Group 1 peptidase allergen; asthma; rhinitis; allergic conjunctivitis; atopic dermatitis; an allergic condition which is triggered by dust mites; an allergic condition which is triggered by a dust mite Group 1 peptidase allergen; and canine atopy.
    Type: Application
    Filed: March 28, 2013
    Publication date: August 22, 2013
    Applicants: The University of Manchester, St George's Hospital Medical School
    Inventors: Clive Robinson, Jihui Zhang, David Ronald Garrod, Trevor Robert Perrior, Gary Karl Newton, Kerry Jenkins, Rebekah Elisabeth Key, Meriel Ruth Major, Mark Richard Stewart
  • Publication number: 20120322722
    Abstract: The present invention pertains generally to the field of therapeutic compounds and more specifically to certain pyruvamide compounds of the formula (X) (for convenience, collectively referred to herein as “PVA compounds”), which, inter alia, inhibit a dust mite Group 1 peptidase allergen (e.g., Der p 1, Der f 1, Eur m 1). The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit a dust mite Group 1 peptidase allergen, and in the treatment of diseases and disorders that are mediated by a dust mite Group 1 peptidase allergen; that are ameliorated by the inhibition of a dust mite Group 1 peptidase allergen; asthma; rhinitis; allergic conjunctivitis; atopic dermatitis; an allergic condition which is triggered by dust mites; an allergic condition which is triggered by a dust mite Group 1 peptidase allergen; and canine atopy.
    Type: Application
    Filed: January 21, 2011
    Publication date: December 20, 2012
    Applicants: THE UNIVERSITY OF MANCHESTER, ST GEORGE'S HOSPITAL MEDICAL SCHOOL
    Inventors: Clive Robinson, Jihui Zhang, David Ronald Garrod, Trevor Robert Perrior, Gary Karl Newton, Kerry Jenkins, Rebekah Elisabeth Beevers, Meriel Ruth Major, Mark Richard Stewart